Lamp.



'f1.1WW1/`v v E. E. TAYLOR.

LAMP.

APPLICATION FILED 1,111.7, 1911.

1,015,21 9. Patented Jan.16,1912.

WIT/VES I J/WEA/:fofe

T I BY @jay/vf VnNTTnn sTATEs PATENT OFFICE, I

EDWARD E. TAYLOR, F CHELSEA, MASSACHUSETTS, ASSIGNOR T0 WILLIAM GRAY, OF i AMESBURY, MASSACHUSETTS.

LAMP.

Specification of Letters latent.l Patented Jan. 16,1912.

Application4 led January 7,V 1911, Serial No. 601,287.

To all'whom t may concern:

Be it known that I, EDWARD E. TAYLOR, a citizen of the United States, residing at Chelsea, in the county of Suffolk and State -of Massachusetts, have invented certain new and useful Improvements in Lamps, of

the rays may be projected parallel to a which the following is a specification.

The invention relates to lamps adapted for use in connection with conveyances of any type such, for example, as automobiles, cars,

or otherl vehicles, the object being the provision of a lamp havingalzody-With a substantially plain exterior surface which Will not catch andretain-dust and dirt and which canveasily be cleaned and polished.

A further object is the provision of a lamp adapted for electric lighting wherein a bulb is used in connection with a parabolicI or' other reflector, and having means for moving the -bulb relative to the reflector,

said means vto be concealed from 4View and` the 4main parts thereof Ainclosed within' a f space from which dust and all foreign sub-v stances shall be excluded. Where a parabolic reflector is used and the lamp located at the focus' all the reflected rays are`pro' jected in parallel lines and to a great d1s.

tance giving a light of intense brilliancy. By moving the lamp to a position infront of the focus thereflected rays are converged to a point; and by moving the lamp t-o a positioniback of the focus the reflected rays are divergent orfspread over a large area with diminished brilliancy.. To utilize these principles of optics means are provided for shifting 'the lamp-relative t0 the reflector so that in much frequentedstreets the reiiected rays of light maybe diverged or spread over a large area with' a diminished illumination, and so that outside of cities great distance, or caused'v to converge'toa point less distant, with an intense brilliancy.

The invention consists in certain novelties of construction and combinations of parts as herein set forth and claimed.

The accompanying drawing illustrates an example of the physical embodimentof the invention and improvements constructed and arranged according to the best mode of procedure so far "devised for the purpose, blitother modes of constructing and arranging the means for shifting the electric lamp may be adopted which are substantial equivalents-of` those illustrated and described.

Figure l1 is a perspective view of the lalnp. Fig. 2 is a vertical section. Figs 3 and t are illustrations of details of construction.

Referring to the several figures, the letter .A designates the body or shelll of the lamp stamped or spun to the general-.shape of a parabolic, hyperbolic orA elliptical conoid; B;

a curved or circular flange at'ithe edgef-of the shell; C, a curvediorcircular bea'dy adjacent the flange, thesaid flange and bead forming a seat for the edge ofy the door when closed; D, a curved or circular Iringg angular in cross section lo'catedfinsidefthe flange B said ring having a flange'l E which `O, a curved on circular perforated flange at the edge of the reflector 'matching the flange F of the ring secured to `the shellj'f l?, screws holding the reflector' in 'plac'eg ancl'hQfis 4a hole at the vertex of the-'rellectr is provided with a suitable hinge, notshio'wn.

In connection with the reflector *isfan'electric lamp, normally' located lat lthefoeu's 0f the parabolic, or concave reflector-when a reflector of other shape is used, andmeans for adjusting' it to the front' orlrearfof-.the focal point. l the reflector -is a small'cylinderA 1 with its.

axis coinciding. with the aXisof.thefrefiector and the opening in the vertex thereofgfjQaa flange at the end of the cy-lindersolde'red to the reflector; 3, oppositelylv disposed fslp'ts in the wall of the cylinder;4, the'fltvmpz-x, a lamp socket to which the'lamp isdetacliably secured; 6, 6 the electrical.conductorspsrssed through the sleeve J andsecredf't' insulated terminals inthe socketgffgguidefplates Secured tothe rear'surfafce of lOl 'eetino from the guidf )lates 9. `a metallic C t.. l

base with perforated lulcrum arms 10, secured to the exterior surface of the cylinder; 11, alforked lever p-ivoted to the arms 10, 10

a fulcru'ni pin 12 passed 'through holes in the lever.: and the arms, said lever having a power arm 13 and weight arms lll, 14 each with a slot-at the end Within which slots .are located the studs 8, 8, the slots allowing-'the studs to move therein when the lever is lturned about the fulcrum pin; 15, sleeve-V lfixed within an opening in the flange O of the reflector; 1G, a tube within the sleeve having at one en d a milled thumb nut 17 a-nd at the other end and bearing against the end of thesleeve 15 a washer 18, said tube being interiorlyh threaded, and said thumb nut, tube and washer loosely engaging the sleeve so they can rotate together within the sleeve; 19, a bolt with a threaded shank engaging the threads in the tube and having a slotted and perforated head Q0, as shown;

- and 21 i's a bar or rod pivoted at one end to "the slotted head ofthe bolt and at the opposite end pivoted to the power arm of the vforked lever.

By rotating the thumb nut the lever 11 Will be turned about the fulcrum pin and the yelectrical lamp and socket be moved .longitudinally relative to the cylinder. The

lamp may'thus alternately be adjusted to positions in front of or back of the focal point of the reflector. Obviously, when the lamp door is closed the thumb nutis concealed, and by locating the electric lamp adjusting mechanism as described the conical end `of the lamp "shell is maintained integral unmarred and undisflgured by a projection of any kind whatever. Moreover, the space between the shell and reflector is ample to receive the operating mechanism, and this space also is entirely closed so dust and dirt, air, or vmoisture or water cannot enter.v

The invention is not restricted to the particular shapes of lamp shell or reflector shown, as it may be embodied with shells and .reflectors of other shapes without constituting substantial departures, inasmuch as the main idea'comprises a shell and Vrefiector combined to form a substantially closed space between them from which for eign matter, such as dust and dirt, are excluded .and within which space are located the main parts of the electric lamp adjusting mechanism. I l

.Vilhat I claim is: y 1. El. lamp comprising a shell, a reflector within the shell, said shell and reflector being spaced apart, an illuminating device movably supported at the vertex of' and by the reflector, and a pivoted lever in connection with the illuminating device for moving said device relative to the reflector 2. A lamp comprising a shell, a reflector within the shell, said shell and reflector being spaced apart., an illuminating device movably supported at the vertex of' the revflector, and means at the rear of the reflector connected with said device and extended forward to the edge of the said reflector for moving the device relative to the reflector.

8. A lamp comprising a shell, a reflector within the shell, the front edges of the shell and reflector being united and the rear portionsspaced apart to form an inclosure, a movably supported electric lamp at the vertex of the reflector, and means extended outside the shell and reflector for moving the electric lamp relative to the reflector, said means comprising a movable lever connected 35 with the lamp and a'bar or rod extended to the edge of the reflector, and means for moving said bar or rod and lever located outside the shell and reflector.

4. The combination with a lamp shell, of a reflector with an opening at the vertex, an electric lamp supported by means located at thev opening, and mechanism connected with the lamp and extended to the front of the reflector for moving the lamp relative to the reflector.

5. The combination with a lamp shell, of a reflector. having an opening at the vertex, a lalnp with a socket located within the opening, and means connected with the said 10o socket and extended to the front of t-he reflectorfor moving the lamp and socket relative to the reflector..

6. The combination with a lamp yshell having a door, of a reflector with an opening at the vertex, a cylinder at the opening,

a lamp with its socket movably supported in the cylinder, and means connected with the socket and extended to a position adjacent the edge of the door when closed for moving the lamp relative to the reflector.

7. The combination with a lamp having a lshell and a door, of a reflector with an opening at the vertex, a cylinder at the opening, alamp with its socket movablysupported in the cylinder, and means comprising a pivoted lever connected with the socket, a bar or rod secured to the lever and extended to the edge of the reflector, and a thumb nut outside the reflector engaging a threaded element at the end of the bar or rod, for moving the lamp relative to the reflector.

S. The combination with a lamp having a shell, of a reflector within the shell, an opening at the vertex of the reflector, a cylinder in connection with the said opening, a lamp with a socket supported by the cylinder, a lever fulerumed on the cylinder and in pivotal. connection with the socket, a bar o1' rodpivoted to the power aiin of the lever and extended to a position adjacent the edge of the reflector, a threaded bolt pitvn oted to the bar or rod, a thumb nut outside the reflector, and a threaded element connecting the thumb nut and the threaded. bolt, for the purpose set forth.

S). The combination 1with a lanipl shell having a closed rear end, of a reteetor Within the shell spaced apart from the shell and the edges of the shell and reflector united., a lamp Inovably'supported at the vert-ex oi' and by the reflector, a lever connected with the lamp, and means extended ronisaid levei to a position outside of the inclosed space between the shell and reflector for moving the lamp.

lO. .el lamp comprising a Shell having an inwardly projecting flange at its edge7 a reflector having an outwardly projecting Flange at its edge matching the inwardly projecting flange ot the shell, means con@ slsting oi. a ring D having two flanges and screws 'passed through one ot the lianges of the ring and the llange ot' the reflector for detaehably uniting' the Said flanges of the shell and ietiee'toi, and a door hinged to the shell.

In testimony whereof it atliii my Signature in presence of two f 'fitnesses "Q'Vitne'sses NA'iI-iiiic E. Comme, il PERRY SARGENax 

